jbars
Class Barcode128

java.lang.Object
  |
  +--jbars.Barcode
        |
        +--jbars.Barcode128

public class Barcode128

extends Barcode

Implements the code 128 and UCC/EAN-128. Other symbologies are allowed in raw mode.

The code types allowed are:

• CODE128 - plain barcode 128.
• CODE128_UCC - support for UCC/EAN-128.
• CODE128_RAW - raw mode. The code attribute has the actual codes from 0 to 105 followed by '\uffff' and the human readable text.

The default parameters are:

 x = 1f;
 font = new Font("Helvetica",Font.PLAIN,20));
 textAlignment = ALIGN_CENTER;
 codeType = CODE128;
 transparent = true;
 shotText = true
 quietZone = true;
 quietZoneX = 10;
 

This class is based on iText "A Free Java-PDF library by Bruno Lowagie and Paulo Soares" using the Mozilla Public License(MPL)

Author:

Andres Ederra, Paulo Soares

Field Summary

(package private) static byte[][]	BARS The bars to generate the code.
(package private) static byte[]	BARS_STOP The stop bars.
static char	CODE_AB_TO_C The charset code change.
static char	CODE_AC_TO_B The charset code change.
static char	CODE_BC_TO_A The charset code change.
static char	FNC1 The code for UCC/EAN-128.
static char	START_A The start code.
static char	START_B The start code.
static char	START_C The start code.

Fields inherited from class jbars.Barcode

ALIGN_CENTER, ALIGN_LEFT, ALIGN_RIGHT, backgroundColor, barHeight, checksumText, CODABAR, code, CODE128, CODE128_RAW, CODE128_UCC, CODE93, codeType, EAN13, EAN8, extended, font, generateChecksum, guardBars, n, PLANET, POSTNET, quietZone, quietZoneX, ROTATE_0, ROTATE_180, ROTATE_270, ROTATE_90, showText, size, startStopText, SUPP2, SUPP5, textAlignment, transparent, TYPE_CODE128, TYPE_CODE93, TYPE_INTERLEAVED2OF5, UPCA, UPCE, x

Constructor Summary

Barcode128()
Creates new Barcode128

Method Summary

float	getBarcodeWidth() Gets the maximum width that the barcode will occupy.
static byte[]	getBarsCode128Raw(java.lang.String text) Generates the bars.
(package private) static java.lang.String	getPackedRawDigits(java.lang.String text, int textIndex, int numDigits) Packs the digits for charset C.
static java.lang.String	getRawText(java.lang.String text, boolean ucc) Converts the human readable text to the characters needed to create a barcode.
(package private) static boolean	isNextDigits(java.lang.String text, int textIndex, int numDigits) Returns true if the next numDigits starting from index textIndex are numeric.
void	placeBarcode(java.awt.image.BufferedImage i, java.awt.Color barColor, java.awt.Color textColor) Places the barcode in a BufferedImage.

Methods inherited from class jbars.Barcode

createImage, createImage, createPNG, createPNG, createPNG, createPNG, createPNG, createPNG, encodePNG, getBackgroundColor, getBarHeight, getCode, getCodeType, getFont, getFontName, getFontSize, getFontStyle, getN, getQuietZoneX, getSize, getTextAlignment, getX, isChecksumText, isExtended, isGenerateChecksum, isGuardBars, isQuietZone, isShowText, isStartStopText, isTransparent, scale, setBackgroundColor, setBarHeight, setChecksumText, setCode, setCodeType, setExtended, setFont, setFontName, setFontSize, setFontStyle, setGenerateChecksum, setGuardBars, setN, setQuietZone, setQuietZoneX, setShowText, setSize, setStartStopText, setTextAlignment, setTransparent, setX

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BARS

static byte[][] BARS

The bars to generate the code.

BARS_STOP

static byte[] BARS_STOP

The stop bars.

CODE_AB_TO_C

public static final char CODE_AB_TO_C

The charset code change.

See Also:

Constant Field Values

CODE_AC_TO_B

public static final char CODE_AC_TO_B

The charset code change.

See Also:

Constant Field Values

CODE_BC_TO_A

public static final char CODE_BC_TO_A

The charset code change.

See Also:

Constant Field Values

FNC1

public static final char FNC1

The code for UCC/EAN-128.

See Also:

Constant Field Values

START_A

public static final char START_A

The start code.

See Also:

Constant Field Values

START_B

public static final char START_B

The start code.

See Also:

Constant Field Values

START_C

public static final char START_C

The start code.

See Also:

Constant Field Values

Constructor Detail

Barcode128

public Barcode128()

Creates new Barcode128

Method Detail

getBarcodeWidth

public float getBarcodeWidth()

Gets the maximum width that the barcode will occupy. The lower left corner is always (0, 0).

Specified by:

getBarcodeWidth in class Barcode

Returns:

the size the barcode occupies.

getBarsCode128Raw

public static byte[] getBarsCode128Raw(java.lang.String text)

Generates the bars. The input has the actual barcodes, not the human readable text.

Parameters:

text - the barcode

Returns:

the bars

getPackedRawDigits

static java.lang.String getPackedRawDigits(java.lang.String text,
                                           int textIndex,
                                           int numDigits)

Packs the digits for charset C. It assumes that all the parameters are valid.

Parameters:

text - the text to pack

textIndex - where to pack from

numDigits - the number of digits to pack. It is always an even number

Returns:

the packed digits, two digits per character

getRawText

public static java.lang.String getRawText(java.lang.String text,
                                          boolean ucc)

Converts the human readable text to the characters needed to create a barcode. Some optimization is done to get the shortest code.

Parameters:

text - the text to convert

ucc - true if it is an UCC/EAN-128. In this case the character FNC1 is added

Returns:

the code ready to be fed to getBarsCode128Raw()

isNextDigits

static boolean isNextDigits(java.lang.String text,
                            int textIndex,
                            int numDigits)

Returns true if the next numDigits starting from index textIndex are numeric.

Parameters:

text - the text to check

textIndex - where to check from

numDigits - the number of digits to check

Returns:

the check result

placeBarcode

public void placeBarcode(java.awt.image.BufferedImage i,
                         java.awt.Color barColor,
                         java.awt.Color textColor)

Places the barcode in a BufferedImage. The The bars and text are written in the following colors:

barColor	textColor	Result
null	null	bars and text painted with current fill color
barColor	null	bars and text painted with barColor
null	textColor	bars painted with current color text painted with textColor
barColor	textColor	bars painted with barColor text painted with textColor

Specified by:

placeBarcode in class Barcode

Parameters:

barColor - the color of the bars. It can be null

textColor - the color of the text. It can be null

Returns:

void